[Bug debug/11353] New: Still problems with namespaces

[Bug debug/11353] New: Still problems with namespaces

[bangerth at dealii dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353

           Summary: Still problems with namespaces
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bangerth at dealii dot org
                CC: gcc-bugs at gcc dot gnu dot org

First: support for namespaces has become much much better, many thanks
for that!

Second: something is still going wrong, though I don't know whether it's
in gcc or in gdb. Here's a small example:
----------------------------------
struct X {
    virtual int f() { return 1; }
};

namespace A {
  struct X {
      virtual int f() { return 2;}
  };
}

void stop_gdb() {}

int main () {
  X    x;
  A::X a_x;
  stop_gdb();
}
------------------------------

Compiled with a recent CSV snapshot of gcc (2003-05-20), then going
into gdb yields this:

tmp/gg> c++ -ggdb x.cc
tmp/gg> gdb a.out
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux-gnu"...
(gdb) b main
Breakpoint 1 at 0x80485c6: file x.cc, line 14.
(gdb) r
Starting program: /homes/csm2/bangerth/tmp/gg/a.out

Breakpoint 1, main () at x.cc:14
14        X    x;
(gdb) n
15        A::X a_x;
(gdb)
16        stop_gdb();
(gdb) p x.f()
$1 = 1
(gdb) p a_x.f()
warning: can't find class named `A::X', as given by C++ RTTI
$2 = 2


Note that the result returned is quite right. It's just the warning that's
confusing me, and in particular that no similar warning is given for ::X.

Maybe someone can make sense out of this.

Thanks
  W.

[Bug debug/11353] Still problems with namespaces

[drow at mvista dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353



------- Additional Comments From drow at mvista dot com  2003-06-29 22:01 -------
Subject: Re:  New: Still problems with namespaces

On Fri, Jun 27, 2003 at 04:05:26PM -0000, bangerth at dealii dot org wrote:
> (gdb) p a_x.f()
> warning: can't find class named `A::X', as given by C++ RTTI

This is primarily a bug in GDB.

Also, I believe GCC still doesn't emit DW_TAG_namespace; the patch was
reposted recently, I don't know what happened to it?

[Bug debug/11353] Still problems with namespaces

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-07-31 16:31:55
               date|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-31 16:31 -------
I do not know if this is a bug in gcc or gdb but I can still reproduce it in the mainline of 
both gcc and gdb (both 20030730).

[Bug debug/11353] Still problems with namespaces

[dhazeghi at yahoo dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4                         |---

[Bug debug/11353] Still problems with namespaces

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-01 23:49 -------
I think this is a gdb bug now as GCC produces DW_TAG_namespace.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-12-02 18:42:52         |2004-01-01 23:49:17
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353

[Bug debug/11353] Still problems with namespaces

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-01 15:58 -------
I no longer get a warning on the CVS version of gdb (2004-03-29-cvs) so this is fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11353